Abstract: Systems and methods for loading runtime configuration files into virtual machine instances. An example method may comprise: storing, by a processing device, a plurality of virtual machine configuration files in a storage memory accessible by a virtual machine instance; creating a file list referencing a virtual machine configuration file of the plurality of virtual machine configuration files, the file list further specifying a target location of the virtual machine configuration file in the virtual machine instance; and causing a boot process of the virtual machine instance to download the virtual machine configuration file specified by the file list from the storage memory into the target location specified by the file list.

Abstract: An apparatus and a method for a shared reusable (IPC) library. The shared reusable IPC library includes a client IPC library and a server IPC library. The client IPC library communicates with a client application. The server IPC library communicates with the sender application. The client IPC library includes instructions for creating, destroying, sending, or receiving IPC messages to and from the client application. The server IPC library includes an initialization function for the server application.

Abstract: Systems and methods for loading runtime configuration files into virtual machine instances. An example method may comprise: storing, by a processing device, a plurality of virtual machine configuration files in a storage memory accessible by a virtual machine instance; creating a file list referencing a virtual machine configuration file of the plurality of virtual machine configuration files, the file list further specifying a target location of the virtual machine configuration file in the virtual machine instance; and causing a boot process of the virtual machine instance to download the virtual machine configuration file specified by the file list from the storage memory into the target location specified by the file list.

Abstract: A mechanism for virtual synchrony total order messaging for virtual machines is disclosed. A method of embodiments of the invention includes receiving a request to reserve a block of memory in a shared memory segment, reserving the block of memory, and providing a start address of the reserved block of memory to a virtual machine (VM) that sent the request in order for the VM to copy a message from an application of the VM into the reserved block of memory, wherein the application communicates with other applications on other VMs using virtual synchrony. The method may further include sending a new message available request to all of the other VMs, wherein the new message available request includes the start address of the reserved block of memory and a length of the message, and tracking the VMs that access the reserved block of memory.

Abstract: A virtual machine communicates with one or more additional virtual machines to establish membership for a virtual lockstep computing system, wherein each virtual machine is hosted by a node in a network. The virtual machine communicates with the one or more additional virtual machines to determine a membership configuration, wherein a first virtual machine in the membership configuration is an active machine, and all remaining virtual machines in the membership configuration are standby machines. A single step operation is executed by the virtual machine upon obtaining an operational token that includes contents of the single step operation, wherein the operational token is generated by the active machine. The operational token is passed to a next virtual machine in the membership configuration, wherein the operational token is passed between the virtual machine and the additional virtual machines according to the membership configuration.

Abstract: In one embodiment, a mechanism for virtual logical volume management is disclosed. In one embodiment, a method for virtual logical volume management includes writing, by a virtual machine (VM) host server computing device, a control block to each of a plurality of network-capable physical storage devices and mapping, by the VM host server computing device, physical storage blocks of the plurality of network-capable physical storage devices to virtual storage blocks of a virtual storage pool by associating the physical storage blocks with the virtual storage blocks in the control block of the network-capable physical storage device housing the physical storage blocks being mapped.

Abstract: A mechanism for virtual synchrony total order messaging for virtual machines is disclosed. A method of embodiments of the invention includes receiving a request to reserve a block of memory in a shared memory segment, reserving the block of memory, and providing a start address of the reserved block of memory to a virtual machine (VM) that sent the request in order for the VM to copy a message from an application of the VM into the reserved block of memory, wherein the application communicates with other applications on other VMs using virtual synchrony. The method may further include sending a new message available request to all of the other VMs, wherein the new message available request includes the start address of the reserved block of memory and a length of the message, and tracking the VMs that access the reserved block of memory.

Abstract: In one embodiment, a mechanism for virtual logical volume management is disclosed. In one embodiment, a method for virtual logical volume management includes writing, by a virtual machine (VM) host server computing device, a control block to each of a plurality of network-capable physical storage devices and mapping, by the VM host server computing device, physical storage blocks of the plurality of network-capable physical storage devices to virtual storage blocks of a virtual storage pool by associating the physical storage blocks with the virtual storage blocks in the control block of the network-capable physical storage device housing the physical storage blocks being mapped.

Abstract: An apparatus and a method for a shared reusable (IPC) library. The shared reusable IPC library includes a client IPC library and a server IPC library. The client IPC library communicates with a client application. The server IPC library communicates with the sender application. The client IPC library includes instructions for creating, destroying, sending, or receiving IPC messages to and from the client application. The server IPC library includes an initialization function for the server application.

Abstract: A virtual machine communicates with one or more additional virtual machines to establish membership for a virtual lockstep computing system, wherein each virtual machine is hosted by a node in a network. The virtual machine communicates with the one or more additional virtual machines to determine a membership configuration, wherein a first virtual machine in the membership configuration is an active machine, and all remaining virtual machines in the membership configuration are standby machines. A single step operation is executed by the virtual machine upon obtaining an operational token that includes contents of the single step operation, wherein the operational token is generated by the active machine. The operational token is passed to a next virtual machine in the membership configuration, wherein the operational token is passed between the virtual machine and the additional virtual machines according to the membership configuration.